This is referencing the Street Fighter franchise. To see the original Street Fighter game, click here.
Street Fighter is a very popular fighting game franchise developed by Capcom. This is the second best selling Capcom franchise, surprisingly beating out Mega Man (by less than a million copies, to be precise) and losing to Resident Evil. Its most iconic characters are Ryu, Ken, Chun-Li, and M. Bison. And despite popular belief, Street Fighter 2: The World Warrior was not the first Street Fighter game.
Series Rep in Battle Royale
In terms of gameplay, Street Fighter doesn't really have much influence; Capcom Versus is where Battle Royale's not-Smash Bros. inspiration comes from. Arcade Mode and Bonus Stages originated in Street Fighter, though (let's be fair, though; Arcade Mode is really Classic Mode and Smash already had Bonus Stages).